Hi!
My family uses AT&T wireless for our mobile service. I discovered that Consumer Cellular -- a really cheap cellular service -- uses AT&T's cellular network for its service. So, if you're currently on AT&T -- as I and my family are -- and I take all 3 smartphones to a Target store, they'll remove our sim cards and replace them with Consumer Cellular sim cards. There will be no change in our service -- the mobile bill for all three of our phones will drop to between 1/3 and 1/2 of the current.
Similarly, for those on Verizon, Spectrum Mobile uses the Verizon network -- just having spectrum take out your Verizon sim cards and put in their own, and your fee drops to $30 per phone, unlimited data.
Also, if you use T-mobile for wireless service, Consumer Cellular can alternatively put you on that network -- go to target, and they'll make the switch for you.
😀
-- Saul